Cleaner for disk harrows.



Patented Apr. 18,1911.

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c. E. ADAMS. CLEANER FOR DISK HARROWS. APPLICATION I'ILIID APR. 30,1910.

Patented Apr. 18, 1911.

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CHARLES E. ADAMS, OF MORRISON, ILLINOIS.

CLEANER FOR DISK HARROWS.

Specification of Letters Patent.

Patented Apr. 18, 1911.

Application filed April 30, 1910. Serial No. 558,630.

To all whom it may concern.-

Be it known that I, CHARLES E. ADAMS, citizen of the United States,residing at Morrison, in the county of W'hiteside and State of Illinois,have invented certain new and useful Improvements in Cleaners for DiskHarrows, of which the following is a specification.

This invention relates to harrows and more particularly to a scraper orcleaner especially designed for attachment to disk harrows.

The object of the invention is to provide a harrow having scrapingblades interposed between the revolving disks thereof and movable intoengagement with said disks for the purpose of cleaning the same.

A further object is to provide means operatively connected with thescraping blades for simultaneously moving all of said blades alternatelyinto engagement with the opposite sides of the disks.

A further object is to provide means for yieldably supporting thescraping blades on the harrow frame, and means for automaticallyreturning the blades to normal or inoperative position after eachscraping operation.

A still further object of the invention is generally to improve thisclass of devices, so as to increase their utility, durability andeflioiency.

Further objects and advantages will ap pear in the followingdescription, it being understood that various changes in form,proportions and minor details of construction may be resorted to withinthe scope of the appended claims.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction, reference isto be had to the-following description and accompanying drawings, inwhich:

Figure 1 is a rear elevation of a disk harrow provided with a scraperconstructed in accordance with my invention; Fig. 2 is a horizontalsectional view taken on the line 22 of Fig. 1, and looking in thedirection of the arrows; Fig. 3 is a vertical sectional view taken onthe line 83 of Fig. 1; Fig. 4 is a perspective view of a portion of theharrow.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The improved scraper forming the subject matter of the present inventionis prin cipally designed for attachment to disk harrows and by way ofillustration is shown in connection with a disk harrow of the ordinaryconstruction, in which 5 designates the supporting frame, 6 the hangers,and 7 the transverse shaft journaled in said hangers and provided with aplurality of revolving disks 8 spaced apart by tubular members orsleeves 9.

Secured to the rear wall of the supporting frame 5 are spaced brackets10, each preferably formed of a single piece of metal hav ing one endthereof bolted or otherwise rigidly secured to the frame at 11 and itsopposite end extended beneath the bottom of said frame and seated in asupporting clip 12, the latter being provided with overhanging flanges13 which bear against the adjacent brackets and serve to assist inretaining said brackets in position on the bottom of the frame 5.

The intermediate portion of each bracket 10 is offset at 14 to form apocket 15 in which is seated a guiding loop 16. The members 16 are eachpreferably formed of a single piece of flat metal, one end of which isinterposed between the clip 12 and the end of the adjacent bracket,while the other end of the metal is bent upon itself to produce a loopfor the reception of a reciprocating scraper carrying bar 17 there beingalined openings formed in the clips 12 and ends of the loops 16 topermit the passage of bolts or similar fastening devices 18.

Interposed between the revolving disks 8 are a series of scraping blades19 having their lower ends curved inwardly toward the axle 7 and theirupper ends provided with attaching flanges 20 for engagement with thebar 17. The adjacent ends of the scrapers 19 are spaced apart toaccommodate the revolving disks 8, the walls of the blades being curved,as indicated at 21 to conform to the shape of'the opposite faces of thedisks, as best shown in Fig. 1 of the drawings. The flanges 20 arepreferably detachably secured to the bar 17 by bolts 22 so as to permitany one of the scraper blades to be readily detached should the latterbecome worn or broken, and replaced by a new blade.

Pivotally mounted at 23 on the rear wall of the supporting frame 5, isan operating lever 24, the lower end of which is deflected laterally at25 and is extended through a slot 26 formed ina laterally extending ear27 secured to the blade carrying bar 17 EX- tending transversely acrossthe upper end of the lever 24 and secured thereto in any suitablemanner, is a cross bar 28 having terminal hooks 29 to which areconnected the adjacent ends of coil springs 30, the opposite ends ofsaid springs being secured to the hooked ends 31 of anchoring plates 32fastened to the rear portion of the supporting frame 5 on opposite sidesof the operating lever 24:, as best shown in Fig. 1 of the drawings.

The tension of the springs 30 is such as to normally and yieldably holdthe curved edges 21 of the scraping blades out of contact with therevolving disks 8 so as not to offer any obstruction to the movement ofthe disks whenthe harrow is traveling over the surf face of a field orother inclosure. The lever 24 is preferably in the form of a flat plate,the upper end of which is provided with spaced transverse incisions andthe metal at said incisions bent or rolled upon itself to produce asocket 38 adapted to receive an operating handle 3 1. Thus it will beseen that by moving the operating handle 34 in one direction, the bar 17will be shifted laterally so as to move the scraping blades intoengagement with the adjacent faces of the disks 18, thus to dislodgedirt and the like deposited thereonwhen the harrow is employed fortilling moist or cloggy soil. When the operating handle 34- is moved inthe opposite direction, the blades 19 will be moved into engagement withthe opposite or concave faces of the disks, the coil springs 30 servingto return the blades 19 to norma or inoperative position, after eachscraping operation.

Attention is here called to the fact that the loops 16 not only form aguide for the scraper carrying bar 17, but also serve to yieldablysupport the scrapers so as to prevent injury thereto in case thescrapers should strike a stone or other obstruction in the path oftravel, the sockets 15 being of suflicient size to permit a slightvertical movement of the loops together with the scraper carrying barfor this purpose. It will also be noted that the scraping blades areimperforate and occupy approximately the entire space between the disks8 so as to form in effect earth guards which serve to deflect the dirtdownwardly and prevent the latter from clogging or otherwise obstructingthe scraper shifting mechanism.

The device is extremely simple in construct-ion and may be used inconnection with any number of disks, without departing from the spiritof the invention.

Having thus described the invention, what is claimed as new is:

1. The combination with a disk harrow, of imperforate scraping bladesoccupying approximately the entire space between the harrow disks andforming intermediate earth guards, means operatively connected with thescraping blades for moving the latter into engagement with the oppositesides of said disks, and means for automatically returning the blades tonormal position after each scraping operation.

2. The combination with a disk harrow, of a scraper carrying bar mountedfor reciprocation on the harrow frame, scraping blades depending fromsaid bar and occupying appioxiinately the entire space between theharrow disks, said blades forming intermediate earth guards, meansoperatively connected with the bar for moving the blades into engagementwith the opposite sides of said disks, and means for automaticallyreturning the blades to normal position after each scraping operation.

3. The combination with a disk harrow, of brackets secured to the harrowframe, a scraper carrying bar mounted for reciprocation in saidbrackets, scraping blades depending from the bar, a lever pivotallymounted on the harrow frame and operatively connected wit-h the bar formoving the scraping blades into engagement with the harrow disks, andsprings forming a yieldable connection between the opposite sides of thelever and the harrow frame for automatically returning the blades tonormal position after each scraping operation.

4. The combination with a disk harrow, of

spaced brackets secured to the harrow frame and provided with ofisetportions, guiding loops seated in the offset portions of the brackets, ascraper carrying bar mounted for reciprocation in the guiding loops,scraping blades depending from the bar, means operatively connected withthe bar for moving the scraping blades alternately into engagement withthe opposite faces of the adjacent harrow disks, and means for returningthe blades to normal position after each scraping operation.

5. The combination with a disk harrow, of brackets secured to the harrowframe and provided with offset portions, guiding loops seated in theoffset portions of the brackets, a scraper carrying bar mounted forreciprocation within the loops and provided with a perforated ear,scraping blades depending from the bar and interposed between the harrowdisks, a lever pivotally mounted on the harrow frame and having itslower end extended within the perforation of said ear, a handle securedto the lever for tilting the latter to move the scraping blades into andout of engagement with the disks, and springs forming a connectionbetween the opposite sides of the lever and the harrow frame forautomatically returning the blades to normal position after eachscraping operation.

6. The combination with a disk harrow, of clips secured to the harrowframe and provided with overhanging flanges, brackets engaging saidflanges and each provided with an oflset portion, guiding loops seatedin the offset portions of the brackets, and provided with shanksinterposed between the clips and the adjacent brackets, a scrapercarrying bar mounted for reciprocation in said loops, scrape-rsdepending from the bar and interposed between the harrow disks,fastening devices piercing the brackets and shanks of the adjacentloops, a lever operatively connected with the bar for moving the bladesinto engagement with the harrow disks, and springs forming a connectionbe tween the opposite sides of the lever and harrow frame for returningthe blades to normal position after each scraping operation.

7 The combination with a disk harrow, of a scraper carrying bar mountedfor reciprocation on the harrow frame and provided with a laterallyextended perforated ear, scraping blades depending from the bar andinterposed between the harrow disks, a lever pivotally mounted on theframe and having its lower end reduced and seated in the perforation ofthe ear and its other end provided with a socket for the reception of anoperating handle, a cross bar secured to the lever above the pivotalaxis of the latter and provided with terminal hooks, anchoring platessecured to the harrow frame on opposite sides of the lever and alsoprovided with hooks, and coil springs engaging the hooks of theanchoring members and cross bar, respectively, for returning the bladesto normal position after each scraping operation.

In testimony whereof, I aflix my signature in presence of two witnesses.

CHARLES E. ADAMS. [11. s.] WVitnesses:

AUGUST J AEGER, GUSTAV A. JAEGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

